亂撞一通 [乱－－－]

Jyutping lyun6 zong6 jat1 tung1
Pinyin luàn zhuàng yí tòng

Definitions (粵典–words.hk)
  1. 語句
    完全​唔​知道​自己​做緊​咩​，​亂​咁​嚟​，​是​但​扮​係​有​做​嘢
    without an objective, aimlessly

亂撞一通 [乱－－－]

Jyutping lyun6*2 zong6 jat1 tung1
Pinyin luàn zhuàng yi1tōng

Definitions (CC-CANTO)
  1. to act blindly without thinking; to blindly stumble one's way through; to go about blindly and haphazardly [written and colloquial]